Monstra CMS 3.0.4 allows attackers to execute arbitrary code via a crafted payload entered into the “Snippet content” field under the “Edit Snippet” module.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-23219
Reference (s):
- https://github.com/monstra-cms/monstra/issues/466